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# System library imports
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from PyQt4 import QtCore, QtGui
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# Local imports
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from IPython.frontend.qt.util import image_from_svg
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from ipython_widget import IPythonWidget
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class RichIPythonWidget(IPythonWidget):
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""" An IPythonWidget that supports rich text, including lists, images, and
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tables. Note that raw performance will be reduced compared to the plain
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text version.
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"""
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#---------------------------------------------------------------------------
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# 'QObject' interface
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#---------------------------------------------------------------------------
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def __init__(self, parent=None):
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""" Create a RichIPythonWidget.
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"""
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super(RichIPythonWidget, self).__init__(kind='rich', parent=parent)
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#---------------------------------------------------------------------------
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# 'FrontendWidget' protected interface
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#---------------------------------------------------------------------------
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def _handle_execute_payload(self, payload):
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""" Reimplemented to handle pylab plot payloads.
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"""
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plot_payload = payload.get('plot', None)
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if plot_payload and plot_payload['format'] == 'svg':
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try:
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image = image_from_svg(plot_payload['data'])
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except ValueError:
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self._append_plain_text('Received invalid plot data.')
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else:
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cursor = self._get_end_cursor()
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cursor.insertBlock()
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cursor.insertImage(image)
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cursor.insertBlock()
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else:
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super(RichIPythonWidget, self)._handle_execute_payload(payload)
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